Alagappa Chettiar College of Engineering and Technology (ACCET-Karaikudi) is an autonomous (with effect from 2009) college of engineering in Karaikudi, Tamil Nadu, India. Established in 1952, it is under the control of the government of the State. The college is a member institute under the TEQIP - Technical Education Quality Improvement Programme in India (11 colleges were selected from Tamil Nadu).

One of the major milestones in the town’s growth was the establishment of Dr. Alagappa Chettiar Group of Institutions and Research centers on the eastern side of the town limits. It was not a phrase of exaggeration if it is said, he built an educational empire. Karaikudi is eternally indebted to the great man - Padma Bhushan Dr. R. M. Alagappa Chettiar. These many educational institutions that dot the town are testimony to the tradition of patronage to education. The town has been growing towards eastern and northern side since then. Some of the major commercial areas are located on the important arterial links between the old town and the new town such as the College road, Sekkalai main road, New bus stand, 100 feet road, Kandanoor road etc.